System Safety; Battery Safety - HP HPE Alletra 2140 Hardware Manual

AC Power Electrical Safety
CAUTION:
The AC input voltage for each 800W AC power supply is 100 to 240 V. The AC input voltage for each 1600W AC
power supply is 200-240 V. Start-up current draw may exceed 8 A.
Locate the power switch on the array and the emergency power switch of the room so that you can quickly stop power to
the system if an electrical issue occurs.
When working with high-voltage components or exposed electrical circuits, have another person who is familiar with
emergency power-off locations nearby to switch off the power, if necessary.
Use an approved power cord with a grounded plug for the power supply, and plug the power cord into a grounded electrical
outlet.
When connecting power to power supplies, install the power supply before connecting the power cable to it. When
disconnecting power to power supplies, unplug the power cable before removing the power supply.
Unplug the power cord before removing a power supply from the chassis.
In the rare event that you must shut down an array for maintenance, such as chassis replacement, power down the system
and unplug the power cords from all power supplies.
DC Power Electrical Safety
CAUTION:
This equipment has a connection between the earthed conductor of the DC supply circuit and the earthing conductor.
All of the following installation conditions must be met:
This equipment shall be connected directly to the DC supply system earthing electrode conductor or to a bonding
jumper from an earthing terminal bar or bus to which the DC supply system earthing electrode conductor is
connected.
This equipment shall be located in the same immediate area (such as adjacent cabinets) as any other equipment
that has a connection between the earthed conductor of the same DC supply circuit and the earthing conductor,
and also the point of earthing of the DC system. The DC system shall not be earthed elsewhere.
The DC supply source shall be located within the same premises as this equipment.
Switching or disconnecting devices shall not be in the earthed circuit conductor between the DC source and the
point of the connection of the earthing electrode conductor.

System Safety

Electrostatic discharge (ESD) can damage system components. To avoid damage to equipment from electrostatic discharge:
Prepare an ESD work surface by placing an antistatic mat on the floor or on a table near the storage system. Attach the
ground lead of the mat to an unpainted surface of the rack.
Always use an ESD wrist strap when touching system components. Attach the grounding strap clip directly to an unpainted
surface of the rack.
Keep each component in its antistatic package until you are ready to install it.
Avoid contact between electronic components and clothing. Even if you are wearing a wrist strap, your clothing may still
retain a charge.

Battery Safety

All HPE storage arrays ship with a super-capacitor to power the NVDIMM. The super-capacitor is not user-replaceable.
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Regulatory and Safety Information 136